Antiskid device for vehicle-wheels



R. EIPOLLOCK. ANTISKID DEVICE`FOR VEHICLE WHEELS. APPLICATION man MAR.15, |918.

1,' 324,065.. l Patented Deo. 9, 1919.

RENO ELMER rOLLOcx, or BEDFORD, OHIO.

.ANTIsxIDDEvIcE non VEHICLE-WHEELS.

Application led March 15` To4 all whom z't may concern:

Be it known that I, RENO E. Pontoon, a citizen of the United States,residing at Bedford, in the county of Cuyahoga, State of Ohio, haveinvented certain new and useful Improvements in Antiskid Devices forVehicle-Wheels; and I do hereby declare the following to be a full,clear, and exact description of the "invention, such as will enableothers skilled in the art to which it appertains to make 4and use thesame.

his invention is an improvementy in vehicle wheels and has particularreference to an anti-skid device therefor.

An Object of the invention is to provide an anti-skid device which maybe readily and quickly applied to and securely retained on the tire of avehicle wheel so as to prevent skidding and protect the tread thereof.

Another object is to provide a device of this character which is simplein construction, easy to manufacture and effective in carrying out thepurpose for which it is designed.

The inventive idea involved is capable .of receiving a variety ofmechanical expressions one of which, for the purpose of illustrating theinvention, is shown in the accompanying drawing wherein Figure 1 isaside elevation of a wheell showing the device applied thereto.

Fig. 2 is a vertical longitudinal section.

Fig. 3 is a tread elevation. Fig. 4 is a transverse section on the line4-4 of Fig. 1. j j Fig. 5 is a detailed perspective viewY of one oftheauxiliary tread members of thedevice. e

`encircle the tire 11 and is curved or arched transversely so as toconform substantially to the transverse contour of the tire and p reventlateral movement of the device with Y respect thereto and thereby avoidaccidental detachment of the device. Each of the rings 12 isV providedupon one edge with an vout- Specication of Letters Patent.

Patented Dec. 9, 1919.

191s. seriai NQ. 222.652.

i standing flange 13 which abuts the flange of the other ring and theselianges are preferably welded together in order to provide a reinforcedrib 14 which is serrated to form a plurality of gripping teeth 15 toprevent skidding of the vehicle wheel when running over smooth orslippery surfaces. To reinforce the teeth 15 every other tooth hasembedded therein another tooth or projection 15 made of relatively hardmaterial such as steel.V In order that skidding of the wheel maybefurther prevented the device includes a plurality of auxiliary treadmembers 16 arranged at intervals about the circumference of the maintread and serving as an additional tie for holding its two flangestogether. Each member comprises two flat plates 18 which may be weldedor otherwise secured face to face and are notched or serrated alongtheir outer'edges to form teeth 20, and al pair of lingers 17 projectingfrom the inner edge of each plate away from and in line with the fingersof Vthe other plate; and, as seen in Fig. 5, the fingers of both pairsare spaced slightly. Occasional teeth 15 of the rib 14 have notches 19extending radially inward from their tips to their bases, and into eachnotch is inserted the tie plates 18 of one of said auxiliary treadmembers, its lingers passing down astride the rib 14 onto the rings 12to which Jthey are secured by means of rivets or other fasteners 21.

The rings 12 are preferably made of material with sufficient resiliencyto permit of the ends of the main or body portion of the device beingadjusted toward and away from each other and one end of said mainportion is rovided with an extension 22 the free en of which is adaptedto engage the inner surface of the adjacent end of the main or bodyportion of the device to form a closure therefor when the ends of thebody portion are spaced apart. In order to secure these ends togetherwhen the device is in its proper position upon the tire, the endopposite that to which the extension 22 is secured, is provided with acircumferentially extending coupling plate 23 bent upon itself toprovide a channel 24 for receiving the end of the rib 14 opposite saidplate, the latter being provided with a plurality of openings 25 any oneof which is adapted to receive a bolt or other fastener 26 which extendsalso through the rib 14 and thereby secures the ends of the main portiontogether. A numbeil of the opeiiin :iie piovided in oi'dei1 that thedevice may be adjusted about tiiee of different Sizes.

niet is Claimed is:-

Aii zint-skid deviee foi' vehicle Wheelsl Comprising two rings disposededge te edge to foi-iii :i mein treed :ind having abutting;

outstanding eii'eiiiiii'iei'entizil flanges: @ei-rated to foini teeth,eeitiiin teeth hating izidizil notches i'oni their tipe to their bases,:ind tying; :iiixiiiiiiy ti'erid ineiiil'ieie :it interval# about themain tread, each including a peil' oi transverse platee disposed in oneof Seid radial slots zuid having oppositely directedeii'euiiiifei'ential fingers fixed upon the rings 15 at opposite sidesof said seri-ated flanges.

Iii testimony whereof, affix my signature, in the presence of twowitnesses.

. REN@ ELMER PGLLOCK. 'Vituesses J. HERMAN CARSE, HELEN J. CAsKiiY.

